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Old 07-30-2018, 09:32 PM   #1
Yellow Jacket
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Join Date: Oct 2003
Location: FL panhandle
Posts: 126
275/40r17 or 315/35r17 which is better for overall performance on rear?

Hello all, I've been running Sumitomo 315/35r17s on the rear with stock size tires up front on my Mach for several years and am not really thrilled with the performance of the rear tires.

I've noticed there are few tire choices for that size, but lots more if you drop down to 275/40r17. I'm tempted to spend the money on Goodyear F1s and stick with the big fatty tires on rear, but I've also read that our cars may actually perform better with a 275/40r17 since it is so light, and that the fat tire may actually hinder performance.

I have stock rims up front and Mach 1 AFS clones in back that are 17x10.5.

I appreciate any educated opinions y'all can offer.

Thanks in advance!
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